The Invesco Dynamic Building & Construction ETF (PKB) was launched on 10/26/2005, and is a passively managed exchange traded fund designed to offer broad exposure to the Industrials - Engineering and Construction segment of the equity market.While an excellent vehicle for long term investors, passively managed ETFs are a popular choice among institutional and retail investors due to their low costs, transparency, flexibility, and tax efficiency.Sector ETFs also provide investors access to a broad group of companies in particular sectors that offer low risk and diversified exposure. Industrials - Engineering and Construction is one of the 16 broad Zacks sectors within the Zacks Industry classification. It is currently ranked 3, placing it in top 19%.Index DetailsThe fund is sponsored by Invesco. It has amassed assets over $294.52 million, making it one of the average sized ETFs attempting to match the performance of the Industrials - Engineering and Construction segment of the equity market. PKB seeks to match the performance of the Dynamic Building & Construction Intellidex Index before fees and expenses.The Dynamic Building & Construction Intellidex Index is comprised of stocks of U.S. building and construction companies. The Index is designed to provide capital appreciation by thoroughly evaluating companies based on a variety of investment merit criteria, including fundamental growth, stock valuation, investment timeliness and risk factors.CostsExpense ratios are an important factor in the return of an ETF and in the long term, cheaper funds can significantly outperform their more expensive counterparts, other things remaining the same.Annual operating expenses for this ETF are 0.60%, making it on par with most peer products in the space.It has a 12-month trailing dividend yield of 0.26%.Sector Exposure and Top HoldingsIt is important to delve into an ETF's holdings before investing despite the many upsides to these kinds of funds like diversified exposure, which minimizes single stock risk. And, most ETFs are very transparent products that disclose their holdings on a daily basis.This ETF has heaviest allocation in the Industrials sector--about 40.50% of the portfolio. Consumer Discretionary and Materials round out the top three.Looking at individual holdings, Home Depot Inc/the (HD) accounts for about 5.79% of total assets, followed by Martin Marietta Materials Inc (MLM) and Vulcan Materials Co (VMC).The top 10 holdings account for about 46.42% of total assets under management.Performance and RiskThe ETF has gained about 0.89% so far this year and is up about 34.65% in the last one year (as of 01/05/2022). In that past 52-week period, it has traded between $42.12 and $54.60.The ETF has a beta of 1.33 and standard deviation of 34.30% for the trailing three-year period, making it a high risk choice in the space. With about 31 holdings, it has more concentrated exposure than peers.AlternativesInvesco Dynamic Building & Construction ETF carries a Zacks ETF Rank of 3 (Hold), which is based on expected asset class return, expense ratio, and momentum, among other factors. Thus, PKB is a reasonable option for those seeking exposure to the Industrials ETFs area of the market. Investors might also want to consider some other ETF options in the space.SPDR S&P Homebuilders ETF (XHB) tracks S&P Homebuilders Select Industry Index and the iShares U.S. Home Construction ETF (ITB) tracks Dow Jones U.S. Select Home Construction Index. SPDR S&P Homebuilders ETF has $2.50 billion in assets, iShares U.S. Home Construction ETF has $3.15 billion. XHB has an expense ratio of 0.35% and ITB charges 0.41%.Bottom LineTo learn more about this product and other ETFs, screen for products that match your investment objectives and read articles on latest developments in the ETF investing universe, please visit Zacks ETF Center. Infrastructure Stock Boom to Sweep America A massive push to rebuild the crumbling U.S. infrastructure will soon be underway. It’s bipartisan, urgent, and inevitable. Trillions will be spent. Fortunes will be made. The only question is “Will you get into the right stocks early when their growth potential is greatest?” Zacks has released a Special Report to help you do just that, and today it’s free. Discover 7 special companies that look to gain the most from construction and repair to roads, bridges, and buildings, plus cargo hauling and energy transformation on an almost unimaginable scale.Download FREE: How to Profit from Trillions on Spending for Infrastructure >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Invesco Dynamic Building & Construction ETF (PKB): ETF Research Reports The Home Depot, Inc. (HD): Free Stock Analysis Report Vulcan Materials Company (VMC): Free Stock Analysis Report Martin Marietta Materials, Inc. (MLM): Free Stock Analysis Report SPDR S&P Homebuilders ETF (XHB): ETF Research Reports iShares U.S. Home Construction ETF (ITB): ETF Research Reports To read this article on Zacks.com click here.